function hideHistoryBackLinks (){
	var currentReferrer = new String (document.referrer);
	regex = /freemedia.at/gi;
	if(currentReferrer.search(regex) == -1){
		var jsBackLinks = document.getElementsByName("jsBackLink");
		for (i=0; i<jsBackLinks.length; i++){
			jsBackLinks[i].innerHTML = '';
		}
	}
}